diff --git a/port/windows/port.json b/port/windows/port.json
index b3eadc6a..8f0a79ce 100644
--- a/port/windows/port.json
+++ b/port/windows/port.json
@@ -7,7 +7,8 @@
     "msvc_crt.c",
     "msvc_wide.c",
     "posix_update.c",
-    "posix_upnp.c"
+    "posix_upnp.c",
+    "posix_trace_marker.c"
   ],
   "libraries": [
     "ws2_32",